nerd

nerd /n./ 1. [mainstream slang] Pejorative applied to anyone
with an above-average IQ and few gifts at small talk and ordinary
social rituals. 2. [jargon] Term of praise applied (in conscious
ironic reference to sense 1) to someone who knows what's really
important and interesting and doesn't care to be distracted by
trivial chatter and silly status games. Compare the two senses of
computer geek.

The word itself appears to derive from the lines "And then, just to
show them, I'll sail to Ka-Troo / And Bring Back an It-Kutch, a
Preep
and a Proo, / A Nerkle, a Nerd, and a Seersucker, too!" in the
Dr. Seuss book "If I Ran the Zoo" (1950). (The spellings
`nurd' and `gnurd' also used to be current at MIT.) How it
developed its mainstream meaning is unclear, but sense 1 seems to
have entered mass culture in the early 1970s (there are reports
that in the mid-1960s it meant roughly "annoying misfit"
without the connotation of intelligence).

An IEEE Spectrum article (4/95, page 16) once derived `nerd' in its
variant form `knurd' from the word `drunk' backwards, but this
bears all the earmarks of a bogus folk etymology.

Hackers developed sense 2 in self-defense perhaps ten years later,
and some actually wear "Nerd Pride" buttons, only half as a
joke. At MIT one can find not only buttons but (what else?) pocket
protectors bearing the slogan and the MIT seal.